166095985 has 32 divisors (see below), whose sum is σ = 228271104. Its totient is φ = 114912000.

The previous prime is 166095977. The next prime is 166096037. The reversal of 166095985 is 589590661.

It is not a de Polignac number, because 166095985 - 2³ = 166095977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103207 + ... + 104803.

It is an arithmetic number, because the mean of its divisors is an integer number (7133472).

Almost surely, 2^166095985 is an apocalyptic number.

It is an amenable number.

166095985 is a deficient number, since it is larger than the sum of its proper divisors (62175119).

166095985 is a wasteful number, since it uses less digits than its factorization.

166095985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705.

The product of its (nonzero) digits is 583200, while the sum is 49.

The square root of 166095985 is about 12887.8231288298. The cubic root of 166095985 is about 549.6923734246.

The spelling of 166095985 in words is "one hundred sixty-six million, ninety-five thousand, nine hundred eighty-five".